Home / 13,103.30-19,661.34-6,530.46

Finding the Fourth Proportional to 13,103.30, 19,661.34 and 6,530.46

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Solution

The fourth proportional to 13,103.30, 19,661.34 and 6,530.46 is: 9,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.30 : 19,661.34 = 6,530.46 : x
  2. Step 2: Convert to fraction form
    13,103.30/19,661.34 = 6,530.46/x
  3. Step 3: Cross multiply
    13,103.30x = 19,661.34 × 6,530.46
  4. Step 4: Simplify right side
    13,103.30x = 128,397,594.42
  5. Step 5: Solve for x
    x = 128,397,594.42/13,103.30
  6. Step 6: Final answer
    x = 9,798.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.